Hemstitching attachment for sewing machines



. F F. HOLLAND HEMSTITCHING ATTACHMENT FOR SEWING MACHINES Filed March22. 1922 Fig.5

F, F. Holland.

iNvEN'roR v ATTOR N EY ?atenterl Get. 9, i923.

FRANK FELIX Romania, or cearos ciaars'rr, TEXAS.

H smemm erracrrrvznnr'froii Emma's-ma mas, I

Application filed'lilarch a, 1922. Serial 1%[54'53755 7 To all ta/tam.it may concern Be it known that L'FRANK FELIX Hon- LANin'a ci'tiz'en ofthe United States, residing at Corpus Christ in the county of Nueces andState of Texas, have invented new and useful Improiemen ts inHemstitchingAttach-.

ments tor Seivin Machines, of which the sisting of movable arms, one ormore of which inay be brought into operative position for causing agreater or lesser separation or two pieces ot-goods, or of the folds ofa hem, to produce heinstitching oi'di'ffer'ent Widths, the said armsbeing also capable of s\ vi nging entirely outof action to permit oi thedevice being used inpicoting.

Another -object is to provide such" an attachment Which When applied tothe presser toot of a machine, extends to "the rear of the-sameian'dtends to keep all Weight direct l V beneath the presser foot and toprevent the attachment from working off, the layers of goods passingsmoothly over and through the device, between a separating loar of eventhickness and the mainjbody of the attachment, in perfect alinement anduniform spaced relation, to produce a perfect and regular stitch. v v oA full and complete understanding oi? the invention may be obtained froma consideration of the followingdetailed description taken in connectionwith the accompanying:

drawing forming a part'of this speci'iication,

it being understood that hile the drawina; shows 'a. practical tormo t'the invention, the latter is not to be confinedto'strictcontormift'yjthe re'wfith, but may be changed or modified, solong assuch changes :or modifica tions markno material departure Fromthe salient features thereofas specifically pointe'd'out in the appendedclaims.

In the dra vvingin Which similar reference characters designatecorresponding parts throughout the several figures;

Figure 1 is a sectional view taken transversely through' thehed plate ota sewing machine, showing the cloth feeder, presser foot and needlefear": in elevation, the in; proved attachment being applied to, the"vpresser'ifoo't.

attachment removed" from the machine "th presser foot being indicated indotted li n s Figure? is a detailperspective view otthefl; I

Figure 3 is an enlargeddetail sectional view of the device, taken on theline 3-3 of FiQure 2.""

F 4 is a 'similarview, taken onthe line of Figure 2.

the "drawing, there is shown the bed plate lot a sewing nachinewhich isindie save-Aer the structure of anumber of Well known makes ofsewing'machines on the market; The bed plate su italoly supportedoverthe usual meehanism' offth e machine, of Which only the cloth feeder2 is shown including the actuating bar 3 and crank mo tion for the same.Insuperposedrelation to the clothj feeden': a presser foot"5,'of or:dina ry construction, i s' emplo'yed, the same being carried by the bar6 mounted; for

clamping actiondin thefhead 7' of the'ma chine arm loc'ated above and inspaced relation to thehed plate l. The needle bar 8 projectsintheusualmanner fromthe lower end of the head 7, and is s'uitably'mounte'd therein to have the necessaryv'moveinent for impartingreciprocatory'niotionto the needle, allot which forms no part ofthepresent invention."

The improved hemstitchi'ng attachment comprises a base plate '10 formedof a strip of thin m'et'al, preferablysteel, and considerablylongerethan Wide,' ,.one end of the stri being bent under as] at 111 tolie flat against the loiver face otwhat constitutes the forward end'ofthe lease plate,fand;thc opposite ,or rear end beingbent upwardly toform anarrOw' tlangel'Qextending en 1 tirely across the same; Adjacentto its front end, the base plate 1s further provided with upstandingsidewalls l3, formedibv provide" V V v v 190 ing o'n[the base plateintegral outstanding WlflgS, which are turned upwardly 1n perpen dicularrelation'to the base plate andfe'xtend inachine, is provided with. a,set screw .lel-

passing through the same and adapted to extending,bifurcated portion ofthe pr'esser hind against ,someiportionof the forwardly Y foot 5, thesaid set screw serving to adjust the base plate forwardly or rearwardlyto bring certainparts to be described in proper relation with themachine needle 9.

Threaded. into the base plate at the longi tudinal center line thereof,and adjacent'to the upstanding flange 12 formed at the rear end of thesame, is a binding screw 15 trav- --ersing a slot 16 providedlongitudinally in a transverse rear bar 17 forming one branch of anadjustable U shaped bracketlS, the said rear bar having its rear edge incontact with the flange 12 throughout the length 7 of the; latter, so,as to prevent any lateral play of the bracket with respect to the baseThe bracket l8 comprises, in addition to the rear bar 1L7 aifront,cloth-separating bar 19,

arranged parallel to the rear bar'and joined to the same by a connectingbar 20, which is bent intermediate its length to bring the said 7 frontbar in a lower plane than the rear bar 17, and slightly below the uppersurface ,l igure 2 of the drawing.

of the-base plate,- the rear or inner edge of the separating ba-rl9being in spaced relation to the front, roundededge of the baseplate, toprovide a space 21 for the free passage of the upper layer of cloth in aman ner to beexplained.

At the intersection of the front bar 19 and the separating bar 19, or'to bemoved into an out-of th-eeway position, as illustrated in Theseparating bar 19 is providedfwith a needle opening 24 for the passageof the needle 9 and connecting with a slot 24; extending to the rearedge of. the bar forthe escape of the thread in a well known manner, asthe goods are fed rer-irwardlyby the serrated cloth feeder 2.

The swinging arms 22 are likewise provided 7 with needle openings 25 tobe brought into alinement with the aforesaid opening 24c,

and likewise provided with communicating slots 25 tobe alined with theslot 2%, When the arms'are in use, for a like purpose.

The base plate 7 carrying the adjustable bracket 18 may be positionedupon the presser foot'of the machine in a forwarder b ckward directionto bring the needle opening or openings in'proper posit-ion withrelation 'tothc needle 9, by means of the set screw 14, which maybebrought to bear at the proper point along the forwardly exending,bifurcated portion of said foot. In "ike manner the opening 24 of theclothvsepa lating bar'l19 may beadjusted laterally by means ofthe'setscrew 15, to properly position tlie same for the passage of the swunginto alined relation to the bar 19, the perforations 25 will registerproperly.

In using the device for narrow .hemstitching or for oiceting, the frontcloth separating bar alone isutilizcd and when wider hemstit-ching isbeing done, one or more of the arms 22 may be swung into alinementwiththe bar as may be found necessary, it being understood thatjwhile onlytwo of. the,

said arms are illustrated 'inv the drawing, more may be suppliedwith'the attachment and used,,when extra wide hemstitching; is

desired" The lower layer or strip dof cloth or needle and, of course,when the arms 22 are 7 fabric is placed upon the bed platel in the usualmanner, the serrated iipper surface of the feeder 2 coining into contactwith the same. The upper layer or strip '2) is placed over the bar 19together with the-in terposed'arms 22, if the latter are to be used, andthe strip 6 is thenpassed downwardly through the slot or space 21,beneath the j'll'QSSel' foot 5, to be held" firmly against the lowerstrip or layer,-when the said foot is depressed in the usual manner, thefeeder then acting to feed bothflstrips in a rearward direction when themachine is operated. The rounded forward edge'of the base plate10'serves to guide the'up'perlayer beneath the presser without damagingthe same, and

the needle passes up and downthrough the more or less spaced layers ormaterial caused bythe interposed bar andarms, the stitches will freethemselves from the latter through the respective slots 24-? and 25 aswill be seen; i

From the foregoing itlwill be seen that a simple, cheaply manufacturedand'efficient hemstitching-attachment for sewing machineshas beenprovided, which may be easily and quickly applied to; the'presser footof an ordinarymachine in a manner to avoid obstructing the view of theoperator, and that the same may be readily adjust-ed forwardly orbackward or in a trans-o verse direction to position the parts properlywith relation to the machine needle, and further that bylsimply swingingone or more of the arms into position, hemstitching of differentwidthsmay be done.

\Vhat is claimed is 1- 7 1. An attachment fora sewing machine having apresser footand a. needle cooperating therewith, comprising a base platehaving means for attachment tothe presser foot of the machine, witha'portion of the plate e rtending to the rear of the presser foot, saidbase plate being forwardly and rearwardly adjustable, an 'integ'ralipturned I" flange at the rear edge of th'e base plate, a substantiallyU-shaped bracket having one branch sccured to and adjustabletransversely of the base plate in abutting. relation to said flange,andthe otherbranch arranged substantially parallel and in spacedrelation to the front end of said plate and having a needle opening, theadjustment of said bracket serving to aline the needle opening with themachine needle.

2. An attachment for a sewing machine having a presser foot, comprisinga base plate having means for attachment to the .presser foot of themachine, said base plate" extending to the rear of the presscr foot andadjustable forwardly and rearwardly on the same, a bracket mounted onthe base 7 plate and provided-With means for adjust ment laterally ofthe base plate, said bracket having a front transverse bar which isarranged in spaced relation to the front end of the'base plate, saidbarhaving a needle opening, and a plurality of arms pivotally mounted onsaid bar and having similar needle openings adapted to be swung into andout of registering relation With the needle'o-pening in the front bar,

8. An attachment fora sewing machine having a presser foot, comprisingan elongated base plate having upturned Walls at its forivard endadapted to straddle the presser foot of the machine, a set screw passingthrough one of the Walls: and adapted to-bear against the-side of thefoot to hold the plate in position and to permit offorward and rearwardadjustment of the same, a transverse flange formed at the rear end ofthe 'plate,a bracket having spaced'substantially parallel front and rearv.

bars joined at one end of each by a connecting bar, the rear bar havinga? longitudinal slot andadapted'toabut against the rear flange of thebase plate, a set screw traversing the slot and entering the base plateto'permit of lateral adjustment of the bracket, the front bar beingprovided With a needle opening having a thread releasing slot, and -aplurality of arms piv t ll

